/Engine/Source/Runtime/SlateCore/Public/Brushes/SlateDynamicImageBrush.h
Ignores the Margin. Just renders the image. Can tile the image instead of stretching.
struct FSlateDynamicImageBrush : public [FSlateBrush](API\Runtime\SlateCore\Styling\FSlateBrush), public [TSharedFromThis< FSlateDynamicImageBrush >](API\Runtime\Core\Templates\TSharedFromThis)